Argument list too long

[John Imholz <imholzj@musc.edu>]

Please excuse the newbie question (I searched the archives and didn't find 
an answer).

When I setfacl on the directory "testacl" with this:
user::rwx
user:user1:rwx
user:user2:rwx
user:user3:rwx
user:user4:rwx
user:user5:rwx
user:user7:rwx
user:user8:rwx
user:user9:rwx
user:user10:rwx
user:user11:rwx
user:user12:rwx
user:user13:rwx
group::rwx
group:user0:r-x
mask::rwx
other::r-x

Then getfacl returns:

getfacl: testacl: Argument list too long

One less user works fine.  I thought the limit was 25.  Any suggestions?

jji